/ Thesaurus / S Synonyms of snake river Find synonyms for: Noun1. Snake, Snake Riverusage: a tributary of the Columbia River that rises in Wyoming and flows westward; discovered in 1805 by the Lewis and Clark ExpeditionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language